Find the equation of the line through the point (-4,-5) and perpendicular to y=-1.

Use the elimination method to find the solution to the system of equations. 2x - 3y = -9 -x + 3y = 6

There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?

The measures of the legs of a right triangle are 15m and 20m . what is the length of the hypotenuse